Curved Flexible Circuit Board Lighting for Uniform Glare-Free Illumination
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Solution Overview
Problem
Conventional lighting apparatuses face challenges in providing intensive, uniformly distributed light that is tailored to a room's characteristics while preventing glare, especially with LED lighting, which often requires complex manufacturing processes and high costs due to the need for adjustable light directionality and uniformity.
Innovation Solution
A lighting apparatus featuring a flexible circuit board with a predetermined curvature, a light guide layer, and a reflection layer to adjust light distribution angles, combined with a diffusive member and a local controller, which allows for customizable light distribution and glare reduction, enhancing both the lighting uniformity and exterior appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lens structure is used to adjust light directionality, then the light distribution angle can be controlled, but the manufacturing process becomes complex and manufacturing cost increases
Solution Approach 1:
The patent applies curvature to the flexible circuit board to achieve light distribution angle adjustment. The circuit board is bent into an arc shape with a specific radius of curvature, which naturally directs the light from LEDs at different positions at specific angles without requiring additional lens structures. This curved configuration enables continuous adjustment of light distribution angles while maintaining a simple manufacturing process.
2Adaptability or versatility
If a lens structure is used to adjust light directionality, then the light distribution angle can be controlled, but the manufacturing cost increases
Solution Approach 1:
The patent uses the curvature of the flexible circuit board as a cost-effective alternative to expensive lens structures. The arc-shaped configuration of the circuit board naturally controls light directionality through its geometry, eliminating the need for additional optical components and reducing manufacturing costs while maintaining adaptability in light distribution.
3Ease of manufacture
If conventional LED lighting is used, then the light source is simple, but the light distribution is not uniform and glare occurs
Solution Approach 1:
The curved flexible circuit board distributes LEDs along an arc rather than a straight line, which creates a more uniform light distribution pattern. This弧形 arrangement ensures that light from different LED positions is distributed more evenly across the target area, reducing hot spots and glare while maintaining the simplicity of using conventional LED components.
4Ease of manufacture
If the light distribution angle is fixed, then the manufacturing process is simple, but the lighting cannot be fitted to room characteristics
Solution Approach 1:
The patent implements a dynamic light distribution system where the flexible circuit board can be bent into different curvature radii to adjust the light distribution angle. This dynamic configurability allows the lighting apparatus to adapt to different room characteristics and installation requirements while maintaining manufacturing simplicity through a single flexible circuit board design that can be shaped as needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables intensive and uniform lighting that is tailored to a room's characteristics, effectively preventing glare and improving the aesthetic appeal by adjusting light distribution angles and using a diffusive member to control light intensity and direction.
Implementation Method 1
A plurality of scratched or dots may be formed in a bottom surface of the light guide layer to reflect a light travelling inside the light guide layer toward the front cover.
Implementation Method 2
a reflection layer to reflect a light reflected from the LED at a specific light distribution angle toward the light guide layer
Implementation Method 3
The lighting apparatus may further include a diffusive member arranged between the front cover and the light emitting module.
Data Source
AI summary
There is disclosed a lighting apparatus that can light a room intensively, fitted to a characteristic of a room, by adjusting an angle of light distribution and that can prevent glare, with improved optical uniformity and beautiful exterior appearance.